commit d01d324b7cf8d95a8ce9c20ede561252a8d3b832
author Todd Wang <toddw@google.com> Wed Mar 16 02:05:12 2016 -0700
committer Todd Wang <toddw@google.com> Wed Mar 16 02:18:19 2016 -0700
tree 3308c4325e70bb9b09701e261a284ed7f591f2e5
parent 2561dfc5ade6512b244230db86ee4574d8c2f6b6

vdl: Add fastpath to vdl.Convertible for same types.

The astute reader will notice that technically we're at 297us for
the 1B rpc, on my machine, which means we're done!  :)

$ jiri go test -bench '(1B|Vom)' v.io/x/ref/runtime/internal/rpc/bench

                      old ns/op     new ns/op     delta
____1B                   308239        297635    -3.44%
____1B_ClientTPCav       547329        534398    -2.36%
____1B_ServerTPCav       593025        583766    -1.56%
____1B_ProxiedServer     413618        404926    -2.10%
____1_chunk_____1B       402684        401834    -0.21%
___10_chunk_____1B       944269        923477    -2.20%
__100_chunk_____1B      6056300       6036839    -0.32%
___1K_chunk_____1B     56669014      55292847    -2.43%
__per_chunk____1B         55035         53107    -3.50%
VomEncodeRequest           4939          4860    -1.60%
VomDecodeRequest          11472         10285   -10.35%
VomEncodeResponse          4290          4324    +0.79%
VomDecodeResponse          6906          6171   -10.64%

Change-Id: I1d1e7a775882725f2496b3fe852009e09620d084